参数资料
| 型号： | LTC4100EG#TR |
| 厂商： | Linear Technology |
| 文件页数： | 24/30页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER SMART BATTERY 24-SSOP |
| 标准包装： | 1,800 |
| 功能： | 充电管理 |
| 电池化学： | 智能电池 |
| 电源电压： | 6 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 24-SSOP |
| 包装： | 带卷 (TR) |
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LTC4100
APPLICATIONS INFORMATION
b) I THRM current is due to SafetySignal (thermistor pin)
sampling that will vary with the presence of DC power
being on or off. DCDIV is detected every 32ms. RTHX
is the value of the safety signal resistance, which will
vary with temperature or battery configuration.
b1) I THRM(ON) when DC is on:
I THRM(ON)_OVERRANGE = 1/16 ? V DD /(54.9k + RTHX)
where RTHX > 100k
I THRM(ON)_COLD = 1/8 ? V DD /(54.9k + RTHX) where
RTHX > 30k
I THRM(ON)_NORMAL = 1/8 ? V DD /(54.9k + RTHX)
+ 1/16 ? V DD /(1.13k + RTHX)
I THRM(ON)_HOT * = 1/8 ? V DD /(54.9k + RTHX)
+ 1/8 ? V DD /(1.13k + RTHX)
where RTHX < 3k
*= includes underrange
b2) I THRM(OFF) when DC is off, the thermistor monitoring
rate is reduced to every 250ms or less.
I THRM(OFF)_OVERRANGE = 1/50 ? V DD /(54.9k + RTHX)
where RTHX > 100K
I THRM(OFF)_COLD = 1/50 ? V DD /(54.9k + RTHX)
+ 1/1000 ? V DD /(54.9k + RTHX)
where RTHX > 30K
I THRM(OFF)_NORMAL = 1/50 ? V DD /(54.9k + RTHX) +
1/500 ? V DD /(54.9k + RTHX ) + 1/1000 ? V DD /(1.13k
+ RTHX)
I THRM(OFF)_HOT * = 1/50 ? V DD /(54.9k + RTHX) +
1/500 ? V DD /(54.9k + RTHX ) + 1/500 ? V DD /(1.13k +
RTHX)
where RTHX < 3k
* includes underrange
c) I ACCEL is the current used by the SMBus accelerators.
This directly depends on the SMBus frequency, duty
cycle of messages sent on the SMBus and how long
it takes to drive the SMBus to V DD .
I ACCEL = I PULL-UP ? 2 ? SMBus Frequency ?
Message Duty Cycle ? V DD /2.25V ? Rise Time
Complete Examples
1) Battery thermistor = 400?, V DD = 5.0V
Battery mode (DC is off), SMBus activity is 10kHz
and a 2% SMBus duty cycle, which represents a
suspended or sleep condition of a notebook.
I TOTAL = I RUN + I THRM(OFF) + I ACCEL = 121.9μA
+ 5.26μA + 2.44μA = 130μA
Battery mode and a 10% SMBus duty cycle, which
represents an active notebook at idle.
I TOTAL = I RUN + I THRM(OFF) + I ACCEL = 189.5μA
+ 5.26μA + 12.2μA = 207μA
DCIN = ON and a 20% SMBus duty cycle which
represents an active notebook charging.
I TOTAL = I RUN + I THRM(ON) + I ACCEL = 274μA
+ 215.6μA + 24.4μA = 514μA
2) Battery thermistor = 10kΩ, V DD = 5.0V
Battery mode (DC is off), SMBus activity is 10kHz
and a 2% SMBus duty cycle:
I TOTAL = I RUN + I THRM(OFF) + I ACCEL = 121.9μA
+ 2.14μA + 2.44μA = 126μA
Battery mode and a 10% SMBus duty cycle:
I TOTAL = I RUN + I THRM(OFF) + I ACCEL = 189.5μA
+ 2.14μA + 12.2μA = 204μA
DCIN = ON and a 20% SMBus duty cycle:
I TOTAL = I RUN + I THRM(OFF) + I ACCEL = 274μA
+ 37.7μA + 24.4μA = 336μA
24
For more information www.linear.com/LTC4100
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4100EGTRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Smart Battery Charger Controller |
| LTC4101 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Smart Battery Charger Controller |
| LTC4101EG | 制造商:LINER 制造商全称:Linear Technology 功能描述:Smart Battery Charger Controller |
| LTC4101EG#PBF | 功能描述:IC CNTRLR BATT CHRG 24-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| LTC4101EG#TRPBF | 功能描述:IC CNTRLR BATT CHRG 24-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
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